WASHINGTON — The White House lacks a unified plan to increase the government’s borrowing cap as a likely September deadline is drawing near, said Mick Mulvaney, director of the Office of Management and Budget.

A failure by Congress to raise the debt ceiling could possibly send dangerous shockwaves through the global economy. The federal government could be at risk of defaulting on obligations such as interest payments on bonds as well as temporarily halting benefit programs.

The White House budget director suggested in an interview Thursday with reporters that neither the Trump administration nor Capitol Hill lawmakers have set their terms for an agreement.

“It’s fair to say we haven’t settled on a final way to address the debt ceiling any more than the Hill has,” Mulvaney said.

The former South Carolina congressman added that none of this was necessarily “unusual.”

Under the current borrowing restrictions, the government has already been taking extraordinary measures and will likely be unable to pay its bills at some point in September. But Congress still has a recess scheduled in August that could create time pressures. Private analysts say the debt ceiling deadline could be extended into October.

Mulvaney said he would like to see the debt ceiling raised in July.

But Trump administration officials still have yet to resolve internal differences on the best strategy to increase the legal cap on debt, which already exceeds $19.8 trillion.

Mulvaney suggested that he would like to have any increase in the borrowing authority be attached to other spending changes, a move that could attract Republican support but alienate Senate Democrats. President Donald Trump’s budget proposal seeks to beef up spending on the military and border security while cutting many social programs.

Treasury Secretary Steve Mnuchin has indicated that he would like a “clean” bill to raise the debt ceiling, so it would not have to be tied to any spending changes.

Mulvaney said that Mnuchin would ultimately be in charge of handling the debt ceiling push.